Brian Brown among speakers at World Congress of Families event
LGBT Catholics, advocates criticize comments in anticipated document
Handful of couples have exchanged vows since 2013
Philippine court convicted Pemberton of killing woman in 2014
Nisha Ayub served prison sentence for cross-dressing
Trip scheduled to include stops in D.C., San Francisco
Kingdom receives more than $1 billion in U.S. aid each year
Announcement coincides with President Obama’s visit to country
Randy Berry scheduled to speak to participants on March 29
White House urged to remove James “Wally” Brewster from post